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ε Trianguli Australis (epsilon Trianguli Australis)

Below the horizon. Never rises today

Alt: -30.10° Az: 193.49° Direction: South-South-West

ε Trianguli Australis is a double giant star of spectral class K1 in the constellation of Triangulum Australe.

ε Trianguli Australis visual magnitude is 4.11. Because of its moderate brightness, ε Trianguli Australis is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Image of ε Trianguli Australis (epsilon Trianguli Australis) star

DSS2 image of ε Trianguli Australis. The red arrow shows the motion of ε Trianguli Australis during the next 10000 years (3.83 arcmin in Right Ascension and -9.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 15h 39m 00s

Declination -66° 23’ 49”

Hour Angle 02h 01m 02s

Sidereal Time 17h 40m 03s

J2000

Right Ascension 15h 36m 43s

Declination -66° 19’ 00”

Galactic Coordinates

Galactic Longitude 318.49°

Galactic Latitude -8.57°

Finder Chart

Simplified finder chart for ε Trianguli Australis (epsilon Trianguli Australis).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.11

Class Giant

Absolute magnitude 0.00

Spectral Type K1III

Color Index (B-V) 1.17

Temperature 4368K

The red dot in the diagram below shows where ε Trianguli Australis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of ε Trianguli Australis. Attribution: Richard Powell / CC BY-SA

Star System Properties

ε Trianguli Australis is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the ε Trianguli Australis double sysyem:

Main star magnitude 4.11

Secondary star magnitude 9.51

Magnitude difference 5.4

Separation 83.2 arcsec

Distance, Radial Speed, Proper Motion

ε Trianguli Australis is distant 216.04 light years from the Sun and it is moving towards the Sun at the speed of 16 kilometers per second.

Distance (parsec) 66.27

Distance (light year) 216.04

Radial Speed -16 km/s

Proper Motion RA 0.023 arcsec/y

Proper Motion Dec -0.055"/y

Alternative Designations

Bayer designation ε Trianguli Australis
(epsilon Trianguli Australis)

Henry Draper Catalogue HD138538

SAO Catalogue SAO253226

Hipparcos Catalogue HIP76440

Durchmusterung Catalogue CP-65 3102

FK5 Catalogue 574

Visibility from Your Location

ε Trianguli Australis (epsilon Trianguli Australis) is currently not visible from Greenwich, UK

Set Location

Other stars in Triangulum Australe